<!DOCTYPE html>
<html>
	<head></head>
	<body>
		<!-- name属性相同为一组 -->
		<form action="http://www.baidu.com" method="get">
			<input type="checkbox" name="checkbox" value="zhangsan"/>
			<input type="checkbox" name="checkbox" value="lisi"/>
			<input type="checkbox" name="checkbox" value="wangwu"/>
			<input type="submit"/>
		</form>

		<!-- name属性相同为一组 -->
		<form action="http://www.baidu.com" method="GET">
			<input type="radio" name="radio1" value="one">
			<input type="radio" name="radio1" value="two">
			<input type="radio" name="radio2" value="three">
			<input type="radio" name="radio2" value="four">
		</form>
	</body>
</html>